Printer s miter-tool



(NoModel.)

W. H. P. BLOEBAUM.

PRINTERS MITER TOOL.

No. 473,689. Patented Apr. Z6, 18912.

q/ s/ G 5 7%6 "Eug .37 sq {g2g/ @J2 9 @n """19 Z8 I f7 7 1J rrrcn.

VILLIAM H. F. BLOEBAUM, OF CINCINNATI, OHIO.

PRINTERS lVllTER-TOOL..

SPECIFICATION forming part of Letters Patent No. 473,689, dated April26, 1892.

Application filed May 12, 1890.

T0 all whom. it may concern.-

Be it known that I, VILLIAM H. F. BLOE- BAUM, a citizen of the UnitedStates, residing at Cincinnati, in the county of Hamilton and State ofOhio, have invented certain new and usefullmprovenients in PrintersMiter-Tools; and I do hereby declare the following to be a full, clear,and exact description ofthe invention, such as will enable othersskilled in the art to which it appertains to make andnse the saine.

My invention relates to improvements in printers initer-tools.

The object of my invention is to produce a printers miter-tool whichshall be simple of construction, convenient to use, durable, and notexpensive.

The invention consists, essentially, ot' a work-table, a hingedrule-holder, adjustable means for supportingr and holding the ruleholderat any desired inclination, and suitable means for holding the rule inposition for being operated upon.

Figure 1 is a left-side View, partly in section, along the line x, Fig.2, and to Fig. 4. Fig. 2 is a plan view of the work-table. Fig. 3 is aright-side view of the device with a part of the work-table broken away.Fig. 4 is a plan of the rule-holder and devices connected therewith.

The same numbers and letters refer to the same parts in differentiigures.

5 is the work-table, 31 30 its support, and 29 the base of the support,which may be made heavy enough to maintain the device in an upright andstationary position, or it may be bolted to a table or other support.

The Work-table 5 has an opening through its front end, into which theend of the ruleholder projects. Lugs 3 are formed on the end of therule-holder, Figs. 1 and 4, and lugs 6 on the sides of the table 5,Figs.1 and 2, and pins 2 hinge these lugs together. The axis of the pins 2,the edge of the end of the ruleholder 9, and the edge of the rule 7 allcoincide in one line 1. This arrangement enables the rule-holder 9 to berotated through any desired angle about the line 1, and thus enables anydesired inclination to be given to the bevel on the end of the rule. Theunder side of the end of the rule-holder 9 is chamfered, as shown inFig. 1, so that the holder 9 may have Serial No. 351,404. (No model.)

`the greatest possible downward swing and yet have its edge 1 close tothe body of the table 5. The angle b 1 c indicates the amount of swingof the rule-holder, the plane through the axis 1 being considered. Theholder 9 is held in any desired position by means of the sector-arm 10,which is rigidly attached at l1 to the side of the rule-holder 9 and hasa central slot 14, through which a binding-screw or a pin 13 is placedfor guiding and clamping the arm 10. The rule-holder 9 (shown in Figs.1, 3, and-i) is rectangular in outline and has a central rectangularrecess 2S in its upper side of the width and depth of a printers rule. Agage-bar 37, Fig. 4, is adjusted in aposition such that a rule placed inthe recess 28 and resting against its upper end will come into properposition at the end 1. The gage 37 is held in place within the recess 2Sby the binding thumb-screw 12, Figs. 1 and 4. The pins 13 and 25 alsohave thumb ends and screwthreads.

Metal pieces 17, Fig. 1, are pivoted at 19 to the sides of therule-holder 9, and have a crosspart 2O 21 secured to their ends byscrews 27, Fig. 4. A clamping-bar 8 is held in a rectangular slotbetween the parts 2O and 2l, as shown in Figs 1, 3, and 4, and isretained in place and guided. bythe pin 22 and aslot 28 in its center.The bar 8 may be clamped between the parts 20 and 21 by adjusting thescrews 27, or the part 2l may be made of spring metal and thus hold thebar 8 in any desired position, while allowing it to be moved freely bythe hand applied at the lower end. The bar S is designed to clamp a rulein place and hold it firmly while being operated upon. Such clampingaction is obtained by means of the lever 24, and the eccentric 2G,having the pinbearing 25. The lever24E is rigidly connected to the piece17 which is pivoted at 19, and hence when the eccentric is turned intothe position shown in Fig. 3, the Lipper end ot' the bar 8 will pressupon and hold the upper end of the rule iirxnly in place. The bottomsurface of the recess 28 in the rule-holder 9 for the reception ot' therule is in a plane which passes through the axis or edge 1, and the endsof the rule-holder at the sides of the recess are beveled on top, asshown in Fig. 4, at a, and the top surface of the table 5 is plain andhorizontal.

IOO

The operation of mitering is performed by means of a file worked by handand held and guided upon the top surface of the work-table 5, bearingboth in front and back of the opening through its body into which theend of the rule projects, whereby a plain even surface at any desiredangle can be formed on the end of the rule. The upper end of theclamping-bar'S is beveled on top, Figs. 1 and 4, so that it will notinterfere with tiling While having its end bear close to the end of therule. The sector is graduated, as indicated by the divisions 16, and anindex is fastened on the side of the frame part 30, whereby any desiredangle may be formed at the axis 1 accurately, and whereby adjustmentsfor different angles may be readily made.

The work-table 5 may be connected to the top 29 30 in any suitablemanner, as by bolts through the flange 31. The table 5 itself is to bemade of case-hardened steel, and the top surface made perfectly plainand even, so that the file may be guided in a true plane, and not abradeor injure the guiding-surface of the table. The parts 9, 10, 17, 20, 21,24, and 26, may be made of cast or malleableiron. The parts 8 and 37 maybe made of brass,

I claiml. In a miter-tool, the combination of a main table having aneven flat top surface and an opening in one end and two pivotal points,one at each side of the opening, a ruleholder having one end pivoted atits upper end to the pivotal point ofthe table and so as to turn aboutan axis extending across the opening in the table and coincident withthe upper surface of the table, substantially as set forth.

2. In a miter-tool, the combination of a main table having an even liattop surface and an opening in one end and having two perforated lugs onits upper surface, one at each side of the opening, a rule-holder havingtwo perforated lugs or hinges at its upper end, and a beveled upper endedge coincident with the axis of its hinges, said hinges connecting therule-holder to the table along ing a rectangular outline and hingesconnecthinged to the table with the axis of the hinges and its upper endcoincident, a formation for holding a rule, a gage for adjusting andsetting the rule, and suitable means forretaming the rule in positionwhen operated upon, substantially as set forth.

5. In a miter-tool, the combination of a main table having an even liattop surface and an opening in one end, a rule-holder hinged at its endto the table,suitable provision for retaining the rule in position onthe holder, and a clamping device arranged to hold the rule firmly inposition when operated upon, substantially as set forth.

b'. In a miter-tool, the combination of a main table having` an evenfiat top surface and an opening in one end, a rule-holder hinged to thetable. a recess in the body of the holder of the width and depth ofarule, a gage for adjusting and setting a rule, a clamp engaging andholding the rule, and an eccentric for tightening the clamp.substantially as set forth.

7. In a miter-tool, the combination of a lnain table having an even flattop surface and an opening in one end, a rule-holder having suitablemeans for receiving and holding a rule and hinged to the table at itsupper end, and an arm connecting the rule-holder with a part ofstationary framing as a means of retaining the holder in a desiredposition, substantially as set forth.

8. In a miter-tool, the combination of a main table having an even flattop surface andan opening in one end, arule-holder having suitable meansfor receiving and holding a rule and hinged to the table at its upperroo end, and a sector-arm connected to the holder and arranged to slidein engagement with a part of stationary framing and having adjusting andsecuring means for adjusting the inclination of the holder and securingit in a m5 desired position to the said frame part, substantially as setforth.

9. In a miter-tool, the combination of a main table having an even flattop surface and an opening in one end,`a rule-holder havno ing suitablemeans for receiving and holding a rule and hinged to the table at itsupper end, and a'sector-arm connected to the holder and having centralslot arranged to slide in engagement with a part of the stationary 115framing, and having a binding-screw as a means for adjusting andsecuring the holder in any desired position, substantially as set forth.

In testimony whereof I now afiix my signa- '12o ture in presence of twowitnesses.

WILLIAM I-I. F. BLOEBAUM.

Witnesses:

EDWARD P. RoBBINs, HENRY F. SENZER.

